Development of Fluorinated Non-Peptidic Ghrelin Receptor Ligands for Potential Use in Molecular Imaging
作者:Rareş-Petru Moldovan、Sylvia Els-Heindl、Dennis Worm、Torsten Kniess、Michael Kluge、Annette Beck-Sickinger、Winnie Deuther-Conrad、Ute Krügel、Peter Brust
DOI:10.3390/ijms18040768
日期:——
limited. Recently, the small and non-peptidic compound (S)-6-(4-bromo-2-fluorophenoxy)-3-((1-isopropylpiperidin-3-yl)methyl)-2-methylpyrido[3,2-d]pyrimidin-4(3H)-one ((S)-9) has been described as a GhrR ligand with high binding affinity. Here, we describe the synthesis of fluorinated derivatives, the in vitro evaluation of their potency as partial agonists and selectivity at GhrRs, and their physicochemical
ghrelin受体(GhrR)是几种疾病中广泛研究的靶标。但是,目前对其在脑中的作用和分布的认识是有限的。最近,小的非肽化合物(S)-6-(4-溴-2-氟苯氧基)-3-((1-异丙基哌啶-3-基)甲基)-2-甲基吡啶[3,2-d]嘧啶4(3H)-1((S)-9)被描述为具有高结合亲和力的GhrR配体。在这里,我们描述了氟化衍生物的合成,它们作为部分激动剂的效力的体外评估以及对GhrRs的选择性及其理化性质。这些结果确定了化合物(S)-9,(R)-9和(S)-16是18F标记的正电子发射断层扫描(PET)放射性示踪剂的合适母体分子,可以在大脑中进一步研究GhrR。